注意：此页面搜索的是所有试题
题目内容
（兰州财经大学大学英语）
2分)______ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home.
A. To wait
B. Have waited
C. Having waited
D. To have waited
A. To wait
B. Have waited
C. Having waited
D. To have waited
参考答案
